Hello Alexia,
You have to calculate an ase run with syst prob nonl nmal yes to get access to the nonlinear results in wingraf. So make sure to run the whole projectfile and all moduls are marked with “+”.
I think, you need version 2024.
You can look in the example “smeared …girder” (this girder-example ist the screenshot), there is on the end: $ only 2024 :
$ PROG WING urs:4
$ HEAD Volume Elements , Non-linear stress reinforcement 1
$ VIEW TYPE DIRE X 0 Y 0 Z 1 AXIS POSY ROTA 0
$ BOX XMIN 4.257151 YMIN 1.347578 ZMIN 0.800008 XMAX 5.584893 YMAX -0.427922 ZMAX -0.0000081 TYPE BWIN OPER AND BGRP 0
$ VIEW TYPE DIRE X 0.864813 Y -0.422351 Z 0.271511 AXIS POSZ ROTA 0
$ LC 501 ; BRIC TYPE NLS1 UNIT DEFA SCHH 0.45 STYP ELEM FILL NO REPR DVEC AVER NO ND 1
$ END
(This code is even in the 2024-example deactivated.)